CA2282597A1 - Methods for producing styrene resin extruded foams, and foams produced thereby - Google Patents

Methods for producing styrene resin extruded foams, and foams produced thereby Download PDF

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Publication number
CA2282597A1
CA2282597A1 CA002282597A CA2282597A CA2282597A1 CA 2282597 A1 CA2282597 A1 CA 2282597A1 CA 002282597 A CA002282597 A CA 002282597A CA 2282597 A CA2282597 A CA 2282597A CA 2282597 A1 CA2282597 A1 CA 2282597A1
Authority
CA
Canada
Prior art keywords
foams
styrene resin
methods
produced
resin extruded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002282597A
Other languages
French (fr)
Other versions
CA2282597C (en
Inventor
Hiroshi Fujiwara
Hiroshi Kobayashi
Fuminobu Hirose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaneka Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2282597A1 publication Critical patent/CA2282597A1/en
Application granted granted Critical
Publication of CA2282597C publication Critical patent/CA2282597C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/149—Mixtures of blowing agents covered by more than one of the groups C08J9/141 - C08J9/143
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/03—Extrusion of the foamable blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/12—Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene

Abstract

Processes for extrusion foaming styrene resins, in which an expanding agent that is as environmentally safe as possible is injected into a styrene resin and by which foams excellent in heat insulating properties and compressive strength can be produced with excellent stability. The processes are characterized by using as the expanding agent a mixture comprising ether in an amount of 5 wt.% or above but below 40 wt.% based on the total amount of the mixture and C3-C5 saturated hydrocarbons in an amount exceeding 60 wt.% but up to 95 wt.%, in which part of the hydrocarbons may be replaced by fluorohydrocarbons with concern for the environment, and, if necessary, by stretching the extrudate under re-heating to adjust the Z/X ratio (wherein X is the average diameter of the cells constituting the foam in the direction of extrusion; and Z is that in the thicknesswise direction) to 1 or below, preferably 0.8 or below.
CA002282597A 1997-12-24 1998-12-24 Methods for producing styrene resin extruded foams, and foams produced thereby Expired - Fee Related CA2282597C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP9/355619 1997-12-24
JP35561997 1997-12-24
JP35561897 1997-12-24
JP9/355618 1997-12-24
JP330598 1998-01-09
JP10/3305 1998-01-09
PCT/JP1998/005936 WO1999033625A1 (en) 1997-12-24 1998-12-24 Processes for the production of extruded foams of styrene resins, and foams

Publications (2)

Publication Number Publication Date
CA2282597A1 true CA2282597A1 (en) 1999-07-08
CA2282597C CA2282597C (en) 2007-09-18

Family

ID=27275747

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002282597A Expired - Fee Related CA2282597C (en) 1997-12-24 1998-12-24 Methods for producing styrene resin extruded foams, and foams produced thereby

Country Status (6)

Country Link
US (1) US6315932B1 (en)
EP (1) EP0978363B1 (en)
JP (1) JP4095119B2 (en)
CA (1) CA2282597C (en)
DE (1) DE69817804T2 (en)
WO (1) WO1999033625A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1247674C (en) 1999-10-27 2006-03-29 钟渊化学工业株式会社 Extruded styrene resin foam and process for producing the same
US6528548B2 (en) 2000-01-14 2003-03-04 Kaneka Corporation Synthetic thermoplastic resin extruded foams and methods for producing the same
JP2002086577A (en) * 2000-09-08 2002-03-26 Dow Kakoh Kk Foamed synthetic resin and its production method
EP1752486A1 (en) * 2000-12-22 2007-02-14 Kaneka Corporation Extruded styrene resin foam and process for producing the same
JP2002212325A (en) * 2001-01-16 2002-07-31 Kanegafuchi Chem Ind Co Ltd Styrenic resin foam and method for producing the same
US20030042644A1 (en) * 2001-06-18 2003-03-06 Jsp Corporation Extruded, polystyrene-based resin foam plate and method for the production thereof
JP4901026B2 (en) * 2001-06-29 2012-03-21 株式会社ジェイエスピー Manufacturing method of polystyrene resin extruded foam plate and polystyrene resin extruded foam plate
US20030203500A1 (en) * 2002-04-26 2003-10-30 Symyx Technologies, Inc. High throughput testing of fluid samples using an electric field
US20030225172A1 (en) * 2002-05-31 2003-12-04 Miller Larry M. To enhance the thermal insulation of polymeric foam by reducing cell anisotropic ratio and the method for production thereof
US8557884B2 (en) * 2002-05-31 2013-10-15 Owens Corning Intellectual Capital, Llc To enhance the thermal insulation of polymeric foam by reducing cell anisotropic ratio and the method for production thereof
US7312253B2 (en) * 2004-09-03 2007-12-25 Pactiv Corporation Insulating thermoplastic foams made with methyl formate-based blowing agents
US7307105B2 (en) * 2004-09-03 2007-12-11 Pactiv Corporation Thermoplastic foams made with methyl formate-based blowing agents
US20060052465A1 (en) * 2004-09-03 2006-03-09 Handa Yash P Thermoplastic foams made with methyl formate-based blowing agents
US8309619B2 (en) 2004-09-03 2012-11-13 Pactiv LLC Reduced-VOC and non-VOC blowing agents for making expanded and extruded thermoplastic foams
US20060052466A1 (en) * 2004-09-03 2006-03-09 Handa Yash P Expanded and extruded thermoplastic foams made with methyl formate-based blowing agents
US8026291B2 (en) 2006-02-22 2011-09-27 Pactiv Corporation Expanded and extruded polyolefin foams made with methyl formate-based blowing agents
US7977397B2 (en) 2006-12-14 2011-07-12 Pactiv Corporation Polymer blends of biodegradable or bio-based and synthetic polymers and foams thereof
ATE523552T1 (en) 2006-12-14 2011-09-15 Pactiv Corp EXPANDED AND EXTRUDED BIODEGRADABLE FOAM WITH REDUCED EMISSIONS PRODUCED USING METHYL FORMIATE-BASED BLOWING AGENT
US7960443B2 (en) * 2007-09-10 2011-06-14 Jsp Corporation Extruded styrenic resin foam and method for producing the same
EP3036278A1 (en) * 2013-11-11 2016-06-29 Dow Global Technologies LLC Styrene-carboxylic acid copolymer foam
WO2016168041A1 (en) 2015-04-15 2016-10-20 Dow Global Technologies Llc Thermally insulating foam with vertically elongated cells

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327031A (en) * 1964-01-22 1967-06-20 Du Pont Process for the extrusion of improved closed-cell foams
JPS5191969A (en) * 1975-02-08 1976-08-12 HATSUHOTAINOSEIZOHO
IT1141633B (en) * 1980-11-05 1986-10-01 Lavorazione Mat Plast PROCEDURE FOR THE PRODUCTION OF A CONTINUOUS SHEET OF SYNTHETIC THERMOPLASTIC POLYMER FOAM BY EXTRUSION
JPH05222234A (en) * 1992-02-14 1993-08-31 Daikin Ind Ltd Foaming agent composition
US5601753A (en) * 1992-02-14 1997-02-11 Daikin Industries, Ltd. Blowing composition, method for producing foam using the composition and foam
DE4236579A1 (en) * 1992-06-04 1993-12-09 Basf Ag Process for the production of foam boards with high compressive strength from styrene polymers
US5244928A (en) * 1992-08-07 1993-09-14 The Dow Chemical Company Foamable composition and process for making large cell size alkenyl aromatic polymer foam structure with 1,1-difluoroethane
ATE164607T1 (en) * 1993-05-27 1998-04-15 Basf Ag FOAM BOARDS PRODUCED USING HALOGEN-FREE BLOWING AGENTS
JP3523981B2 (en) * 1997-03-25 2004-04-26 積水化成品工業株式会社 Polystyrene resin foam and method for producing the same
JPH10273548A (en) * 1997-03-28 1998-10-13 Sekisui Plastics Co Ltd Polystyrene resin foam and production thereof

Also Published As

Publication number Publication date
EP0978363B1 (en) 2003-09-03
EP0978363A4 (en) 2001-02-14
DE69817804T2 (en) 2004-07-15
US6315932B1 (en) 2001-11-13
EP0978363A1 (en) 2000-02-09
DE69817804D1 (en) 2003-10-09
CA2282597C (en) 2007-09-18
WO1999033625A1 (en) 1999-07-08
JP4095119B2 (en) 2008-06-04

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Effective date: 20091224